Smart Contract Auditor is a GPT designed with the primary aim of auditing smart contracts on the Ethereum platform. It seeks to ensure the security of deployed contracts and the robustness of their codebase. This tool offers an insightful analysis of the contracts, by identifying common pitfalls and vulnerabilities that could potentially be exploited. Moreover, it can also provide comprehensive information on the best practices to follow when writing secure smart contracts. It has capability for explaining various security mechanisms in Ethereum, augmenting its usefulness as a tool in understanding and learning about the Ethereum security landscape. Additionally, it can offer advice on how to mitigate certain security attacks specific to Ethereum contracts, such as reentrancy attacks. By using this GPT, developers can enhance their knowledge base and become better equipped at writing safe, secure, and reliable contracts on the Ethereum platform. This tool is a part of the ChatGPT Plus suite, which requires sign-up to access. Please note that this tool strictly focuses on smart contracts in Ethereum. Therefore, it may not be applicable or useful for other blockchain networks unless they use Ethereum's programming paradigms or languages.